Unit 14 - Astronomical Motion: Inertia, Mass, & Force
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This document provides an overview of Newton's first law of motion, also known as the law of inertia. It defines key terms like force, mass, inertia, and scalar and vector quantities. Newton's first law states that an object will remain at rest or in uniform motion in a straight line unless acted upon by an external force. The document outlines the concepts of inertia and mass, defines Newton's law of inertia, and provides examples of scalar versus vector physical quantities like velocity, weight, and force.
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This document summarizes key concepts in physics from kinematics to dynamics. It begins with definitions of physics, motion, and how motion can be divided into kinematics and dynamics. Kinematics is the mathematical representation of motion using scalars and vectors, while dynamics studies forces and their effects on motion. Examples of concepts covered for each include free fall motion and projectile motion for kinematics, and Newton's Laws of Motion, inertia, and friction for dynamics. A brief history of physics is also provided, highlighting discoveries from ancient Greek scientists to Galileo and Newton.
Relativity theory
This document provides an overview of Albert Einstein and his theories of special and general relativity. It discusses key ideas such as:
- Einstein was born in Germany in 1879 and developed the theories of special and general relativity.
- Special relativity is based on two postulates about the laws of physics being the same in all inertial frames and the constant speed of light. This theory explains phenomena like time dilation and length contraction.
- General relativity holds that gravity is a result of the curvature of spacetime caused by massive objects. It predicts effects like light deflection and Mercury's orbit that have been observed.
Physics 2 (Modern Physics)
This document discusses the key branches and concepts of modern physics. It begins by outlining the objectives of becoming familiar with modern physics, stating the postulates of special relativity, and differentiating between inertial and non-inertial reference frames. The main branches of modern physics discussed are atomic and nuclear physics, quantum physics, relativistic physics, solid state physics, and plasma physics. Special relativity introduced ideas like time dilation, length contraction, and mass increase that defy common sense. The general theory of relativity further unified these ideas and proposed gravity is a manifestation of curved spacetime due to mass-energy and momentum.
Physics 2 (Modern Physics)
This document discusses key concepts in modern physics, including:
1. It outlines several branches of modern physics including atomic/nuclear physics, quantum physics, relativistic physics, solid state physics, and plasma physics.
2. It then discusses Einstein's theory of special relativity, noting that it revolutionized physics by connecting space and time, matter and energy, and electricity and magnetism.
3. Einstein's general theory of relativity is then introduced, which describes gravitation as a result of the curvature of spacetime caused by the mass and energy of objects. It has been confirmed by observations of gravitational redshift, light deflection, and Mercury's orbit.
Notes rb labs 1 and 2
This document contains summaries of two labs on forces and motion:
Lab 1 explores graphing motion using distance-time graphs, including how slope represents speed and direction of motion.
Lab 2 covers gravity, defining force, gravity, and weight. It explains Newton's law of universal gravitation and the relationships between mass, gravity, and weight. Gravity is a force between masses that decreases with distance and increases with mass. Weight is the force of gravity on an object and can vary by location while mass remains constant.
Gravity
Sir Isaac Newton made groundbreaking discoveries in gravitational theory and mechanics in the late 1600s. He formulated his theory of universal gravitation, which stated that every object in the universe attracts every other object with a force proportional to the product of their masses and inversely proportional to the square of the distance between them. This theory enabled scientists to gather detailed information about objects in our solar system and beyond by applying Newton's law of gravity to measurements of orbital characteristics. While modern physics has since developed Einstein's theory of general relativity, Newton's theory of gravity remains accurate for describing most astronomical observations and was a major breakthrough of the scientific revolution.
Gravity#SciChallenge2017
Gravity is the force that attracts all matter to each other. It causes planets, stars, and galaxies to form and influences the motion of objects in space. Isaac Newton first proposed that gravity depends on the masses of objects and the distance between them. Later, Einstein's theory of general relativity explained that gravity is caused by the curvature of spacetime due to the uneven distribution of mass. Tests have supported Einstein's theory, such as observations of gravitational lensing and gravitational waves. Gravity plays a key role in the formation and evolution of astronomical objects throughout the universe.
241262134 rubab-thesis
https://www.homeworkping.com/,homework help,online homework help,online tutors,online tutoring,research paper help,do my homework,
Gravity
Gravity, or gravitation, is a natural phenomenon by which all things with mass are brought toward (or gravitate toward) one another, including planets, stars and galaxies.
Since energy and mass are equivalent, all forms of energy, including light, also cause gravitation and are under the influence of it.
On Earth, gravity gives weight to physical objects and causes the ocean tides.
Gravity 2
- Galileo proved through experiments that all objects fall at the same rate regardless of their mass, contradicting prior beliefs. He dropped objects from the Leaning Tower of Pisa.
- Isaac Newton later determined that gravity is a force of attraction between objects, with the force proportional to the masses of the objects and inversely proportional to the square of the distance between them.
- Newton's law of universal gravitation explained the orbits of planets and enabled scientists to calculate the existence of Neptune before discovering it. Gravity also causes ocean tides via the Moon's attraction.
Gravitation theory
1) Gravity is a natural phenomenon that causes all objects with mass to attract each other. Modern physics describes gravitation through Einstein's general theory of relativity, which views gravity as a distortion of spacetime by massive objects.
2) Isaac Newton formulated the law of universal gravitation, which states that the gravitational force between two objects is directly proportional to their masses and inversely proportional to the square of the distance between them.
3) Newton's theory accounted for the motions of celestial bodies and dominated scientists' views of the physical universe for three centuries, until Einstein's general relativity resolved some discrepancies like Mercury's orbit.
Relativity english
This document discusses Albert Einstein's theory of general relativity and how it differs from Isaac Newton's theory of universal gravitation. It provides explanations of key concepts in both theories, such as how general relativity describes gravity as a distortion of spacetime geometry rather than a force. It also outlines some predictions of general relativity that have been confirmed experimentally, like gravitational redshift and gravitational time dilation. However, it argues that Einstein's theory lacks fundamental origins and ignores basic scientific principles, making it an irrational theory despite its acceptance.
Relativity english
This document discusses Albert Einstein's theory of general relativity and how it differs from Isaac Newton's theory of universal gravitation. It provides explanations of key concepts in both theories, such as how general relativity describes gravity as a distortion of spacetime geometry rather than a force. It also outlines some predictions of general relativity that have been confirmed experimentally, like gravitational redshift and gravitational time dilation. However, it argues that Einstein's theory lacks fundamental origins and ignores basic scientific principles, making it an irrational theory despite its acceptance.
Dawn of modern physics with sub topics which is useful for punjab board students
1) A frame of reference consists of a coordinate system and reference points used to describe an object's position and motion. Inertial frames follow Newton's laws, while non-inertial frames experience fictitious forces.
2) Einstein's theory of relativity established that the laws of physics are the same in all inertial frames, and that the speed of light is constant in all reference frames. This led to insights about spacetime and relativity of simultaneity.
3) Consequences of special relativity include length contraction, time dilation, mass-energy equivalence, and that nothing can travel faster than the speed of light. These predictions have been verified experimentally.
Lecture15 forces
1) Inertia is the tendency of an object to resist changes in its motion. Mass is a measure of an object's inertia, with more massive objects being harder to accelerate or decelerate.
2) Newton's second law states that the acceleration of an object is directly proportional to the net force acting on it and inversely proportional to its mass. This relationship can be expressed as F=ma.
3) Newton's third law states that for every action force there is an equal and opposite reaction force. Forces always occur in action-reaction pairs between interacting objects.
Forces.pptx
The document discusses forces and gravity. It begins by describing an experiment where objects of different masses are dropped from the same height. Both objects hit the ground at the same time, indicating they experience the same acceleration due to gravity. Galileo is said to have performed a similar experiment. The document then explains Isaac Newton's law of universal gravitation, which describes the gravitational force between two objects. It further discusses how gravity causes weight and introduces equations to calculate gravitational force and acceleration. The document ends by noting gravity is not exactly the same at all points on Earth due to the planet's irregular shape.
Gravity for kids
Gravity is the force that attracts objects to each other. Galileo proved that all objects fall at the same rate regardless of mass. Isaac Newton furthered understanding by describing gravity mathematically as a force dependent on the masses of objects and the distance between them. Newton's law of universal gravitation explained phenomena like planetary orbits and the moon's effect in causing ocean tides through its gravitational pull on Earth.
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Unit 14 - Astronomical Motion: Inertia, Mass, & Force
- 1. The Astronomy Picture of the Day
- 2. Astronomical Motion: Inertia, Mass, & Force Isaac Newton (1642-1727); mathematician, physicist, & astronomer
- 3. Outline • Inertia & Mass • The Law of Inertia • Forces
- 5. Newton’s First Law (law of inertia) • An object will remain at rest or in uniform motion in a straight line unless some net external force acts upon it.
- 7. Force needed to overcome inertia
- 8. Key Terms • Force (F, Vector): a push or pull. Typical units: the Newton (N), the pound (lb). • Inertia: the tendency of an object at rest to remain at rest & of a body in motion to continue in motion in a straight line at a constant speed. • Mass (m, scalar): a measure of the amount of material an object contains. A quantity measuring a body’s inertia. Typical units: the gram (g), kilogram (kg).
- 9. Key Terms • Newton’s first law of motion (law of inertia): a body continues in a state of rest or in uniform motion in a straight line unless acted upon by an external force. • Velocity (v, vector): a physical quantity that indicates both the speed (v, scalar) of a body & the direction in which it is moving. • Weight (w, vector): the gravitational force exerted on a body by the Earth (or another astronomical object).
- 10. Key Terms • Scalar: In physics, a scalar is a simple physical quantity that does not depend on direction. Example: time, mass, speed. • Vector: In physics a vector is a concept characterized by a magnitude and a direction. Example: velocity, acceleration, force.
- 11. High school teachers conduct experiments in zero gravity aboard NASA’s “Weightless Wonder” (or “Vomit Comet”, August/September 2006 3 although NASA doesn’t really endorse that moniker). g Experiments Anybody Seen my Comb? ts then returned to their o share what they’ve y giving presentations experiments and devel- ivities for use in their d communities. ll Aboard the Vomit Comet" ya Sathyasheelappa, rld Year of Physics Coordinator, joined the r s a b o a rd N A S A’s ss Wonder. Here’s his on of being in Zero-G: Photo credit: Vinaya Sathyasheelappa day began early. Our Teacher Lori DiLisi of Beaumont High School in University Heights, rning briefing consist- Ohio flies through the air with the greatest of ease in the weightless me housekeeping items, environment aboard NASA's reduced gravity C-9 airplane. onditions, scheduling,
- 12. Questions for in-class discussion